I saw it on Saturday and was disapointed about how much was cut.

I make it a point to not re-read the books before the movies come out so that I can do my best to enjoy the movie.
Honestly the thing that absolutely distracted me the most was that in the opening scene you can clearly see that the actor who plays Dudley Dursley has a real scar in the same spot as Daniel Radcliffe's fake scar. I kept thinking, "Did he always have that?". How bizarre that he would get that scar in that spot!